Lock.



W. KAMIANCZYN & l. WASYLOW.

LOCK.

APPLICATION FILED JULY 26. I916- Patented Feb. 20,1917.

ghapyl 4cm W 1 WASYL KAIVIIANCZYN, OF DUQUE SNE,

AND ILKO WASYLOW,I OF WENDEL, PENNSYL- VANIA. j

LOCK.

Specification of Letters Patent. Patented Feb, 2,0 1917,

Application filed. July as, 1916. Serial no. 111,335. 1 1

To all whom it may concern: I

Be it known that I, WASYL KAMIANOZYN, a subject of the Emperor of Austria-Hum gar-y, and a resident of Duquesne, in the county of Allegheny and State of Pennsyl- Vania, and I, ILxo VVAsYLow, a sub ect of the Emperor of Austria-Hungary, and a resident of Wendel, in the county of WVes'tmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Locks, of which the following is a specification.

This invention relates to improvements in locks, particularly of the type adapted for use in connection with swinging doors.

The principal object of the invention is to provide a lock having a bolt operable by a key and other bolt elements operable by a knob.

Another object is to provide an efficient and moderate priced lock in which few elements are employed, and which can be applied to any door of ordinary construction.

These and other objects are attained by the novel construction and combination ofparts hereafter described and shown in the accompanying drawing, forming part of this specification and in which Figure 1 is a partial plan and sectional view, the section being taken on line 11 of Fig. 3.

, Fig. 2 is a partial vertical sectional and front view of the lock, showing its application.

Fig. 3 is a vertical sectional view taken on line 33 of Fig. 1, and

Fig. 4: is a fragmental perspective view showing the upper corner of the lock.

In the drawings, the door 10 shows the lock body or casing 11 to be attached at its front edge; in the upper part of the casing are a pair of slidingbolt elements res )ectively 1 1 and 15, rigidly engaged toget er by cross bars 16, near the front and rear ends thereof; the outwardly projecting beveled ends 17 and 18 of which are shaped in the usual manner and adapted to perform the usual functions of a knob operated latch bolt.

Passing through the door is a rectangular bar 20 having a recess 21 formed near the center of its length, the ends of the bar.

being secured in the stems 22 of the knobs 23 which are of the usual construction.

Engaged upon the bar in the recess 21 is the rack teeth 28, and 30, formed respectively on-the adjacent surface of the bars Hand 15. j

The teeth on the bar 14: are formed entirely across the narrower side of the bar at about the center of its length and with relation to the pinion 25, while the teeth 30, on

the oppositely disposed bar 15, are formed on the corresponding adjacent side of the bar 15 within the space of the recess 31, and are, therefore, so much shorter as to permit the pinion 25 to be moved outwardly against the inner surface of the lock casing upon pressure being applied to the knob 23, clearing the teeth 30 and compressing the springs 32 and 33, moving the bar 20 laterally through the lock, as will be apparent. 1

hen the knob 23 is pressed inwardly it is'possible to turn the same and through it rotate the pinion which by reason of its engagement with the teeth 28, cause the latch bolts 14 and 15 to be retracted within the casing; releasing the knob 23, allows the spring 32 to expand, moving the pinion outwardly into engagement with both racks 28 and 30, looking the bolts in whatever position they may be either extended or retracted.

A pull spring 34 is used to keep the bolts 14 and 15 normally outward.

Thus far the description pertains to the a pinion 25, the teeth of which mesh with knob actuated portion of the lock which has also combined with it a sliding lock bolt 35, movable in the casing between fixed bars 36 and 37 respectively, the same being rigidly secured within the casing and forming a slideway .therebetween.

One of the bars 37 is provided with a recess 38 and also has attached to it on the outer side a flat spring 40 having an outwardly curved loopdl adapted to engage the point of an entering key, so that the same is not held rigidly but resiliently in its position when once inserted in the door.

The ward of the key makes contact with the extensions 14: which are movable within the recess38 and formed with the sliding bolt 35 so as to operate the same under the turning movement of the key inserted through the 'escutcheon opening 435.

Thusit will be seen that a'novel and prac tical lock has been disclosed possessing certain advantages-over those of the common Having thus described our invention, What we claim as newiand desire to secure by Letters Patent, is Y 1. In a lock of the type described, a pair of sliding bolts having rack teeth upon their adjacent surfaces, one of said bolts being recessed aldng said teeth, a pinion normally engaging both of said racks, means for mom ing said pinion laterally into the mentioned recess and means for rotating said pinion whereby said bolts may be actuated.

2. In a lock of the type described, the

combination with a casing, a pair of slide bolts having rigid engaging elements there between, one of said bolts being recessed centrally, racks formed on the inner face of said bolts, a pinion normally engaging said racks, a knob operable from the exterior of the door, a bar fixed in said knob whereby rotary motion may be communicated to said pinion, and means for moving sald plnlon vlaterally into or out of engagement with the rack on the recessed bolt.

Copies of this patent may be obtained for five centseaelnbyaHdi'essing the (loiii niissioner of Patents. Washington, D. G. 

